Slush Molded TPU for Instrument Panels, Consoles, and Doors
2003 General Motors Cadillac XLR



Nominee Number: 31 Result: Finalist
Category: Materials Description: Slush Molded TPU for Instrument Panels, Consoles, Doors
OEM: General Motors Model: Cadillac XLR
Model Year: 2003 System Supplier: Collins & Aikman
System Contact: Terry Anderson System Phone: 734-354-2337
Model/Processor: Collins & Aikman Molder Contact: Kevin Brady
Molder Phone: 423-744-1001 Toolmaker: Collins & Aikman
Tool Contact: Dennis MacCafferty Tool Phone: -
Material Supplier: Collins & Aikman Material Contact: Terry Anderson
Material Phone: 734-354-2337 Generic Resin Type: TPU
Resin Trade Name: Envirosoft Grade: -
OEM Engineer: Tom Pickett OEM Title: Senior Project Engineer
OEM Phone: 586-492-2454 Name of Nominee: Tom Pickett
Nominee's Company: General Motors Nominee's Address: 30007 Van Dyke
Warren, MI 48090
Nominee's Phone: 586-492-2454 Nominee's Fax: 586-492-5115
Nominee's Email: thomas.pickett@gm.com    
Summary: First unpainted slush molded TPU with very low gloss and first TPU with dramatically increased airbag deployment range.  Assembled part cost savings: 5% due to elimination of paint.
Most Innovative Feature: First unpainted slush molded TPU with very low gloss (1.0-1.5 vs. 5-7) and first TPU with dramatically increased airbag deployment range(-40C to +107C vs. -30C to 85C).
Other Innovative Features: Allows mold-in-color that meets OEM's emerging "rich" looking interior, achieving improved harmony. The new material also has 25% improved cycle time.
What Forming Process? Slush molding.
First Time Process Used: Yes.
Previous Process: Most previous slush molded TPU's and PVC require paint due to performance requirements.  Previous materials do not achieve low gloss. Previous TPU did not have to meet the more stringent occupant out of position airbag requirements.
Tooling Innovations: Tool preparation chemistry & process coupled with tool maintenance chemistry & process were additionally developed. Cleaning and mold release chemistry were also developed to maintain consistency of gloss.
New Material Developments: Patented new chemistry and new polymer processing were required to simultaneously achieve low gloss, elimination of paint, and an airbag deployment window of -40C to 107C.
Weight Savings: None.
Cost Savings: Elimination of paint provides assembled part cost reduction of 5%.
Cost Avoidance: Slush molding cycle time is reduced by 25%.
Direct Consumer Benefit: Customer sees interior as substantially improved (rich look, soft touch) versus previous interior.  The system also achieves improved performance at both the high and low ends of the temperature range.  Fit and finish issues are eliminated by this technology.
Translates to Other Vehicles?: Can be translated to other OEM's and vehicle lines.
Safety Benefits: System allows airbag deployments to occur over the largest temperature range of any commercial material.
Environmental Benefits: Material is environmentally recyclable without harmful emissions.  No paint system allows for easier recycling than painted systems (no paint stripping required).  Volatile organic compound emissions are also eliminated.
Additional Comments: The polymerization process for preparing the TPU is also unique.  The new polymerization process generates a more consistent molecular weight which results in cycle time reduction.